Background: The user experience aims to determine, in a broad sense, the state of the interactions of a user with a product, system or service. Particularly for the services that the area of the Information and Communication Technologies provides to the health sector, the evaluation of the user experience becomes an important milestone in the design and implementation of this type of services, to maintain the motivation of the user when using them. However, the evaluation of the experience can be intrusive for the user and the results are biased by the subjectivity of the user and the evaluator. Evaluation methods based on psychophysiology gather the relationships that may exist between what the user feels, thinks and behaves, and what can be measured in their body in a non-intrusive way, to achieve objective results in the evaluations of the user experience. Objectives: The main objective of this Master's thesis is the definition of a method for the objective evaluation of the user experience for children with specific learning disorders. To define the method, it is important to frame it in a conceptual framework identifying the psychophysiological measures used in the objective evaluation of applications in the eHealth area. The instantiation of the defined method leads to obtaining the measurement procedure that defines the relationship between a physiological signal and a psychological event. The method is evaluated within the HapHop-Fisio scenario to determine the user experience.